.bazelrc

build --cxxopt=--std=c++14
build --copt=-I.
# Bazel does not support including its cc_library targets as system
# headers. We work around this for generated code
# (e.g. c10/macros/cmake_macros.h) by making the generated directory a
# system include path.
build --copt=-isystem --copt bazel-out/k8-fastbuild/bin
build --copt=-isystem --copt bazel-out/darwin-fastbuild/bin
build --experimental_ui_max_stdouterr_bytes=2048576

# Configuration to disable tty features for environments like CI
build:no-tty --curses no
build:no-tty --progress_report_interval 10
build:no-tty --show_progress_rate_limit 10

# Build with GPU support by default.
build --define=cuda=true
# rules_cuda configuration
build --@rules_cuda//cuda:enable_cuda
build --@rules_cuda//cuda:cuda_targets=sm_52
build --@rules_cuda//cuda:compiler=nvcc
build --repo_env=CUDA_PATH=/usr/local/cuda

# Configuration to build without GPU support
build:cpu-only --define=cuda=false
# define a separate build folder for faster switching between configs
build:cpu-only --platform_suffix=-cpu-only
# See the note on the config-less build for details about why we are
# doing this. We must also do it for the "-cpu-only" platform suffix.
build --copt=-isystem --copt=bazel-out/k8-fastbuild-cpu-only/bin
# rules_cuda configuration
build:cpu-only --@rules_cuda//cuda:enable_cuda=False

# Set additional warnings to error level.
#
# Implementation notes:
#  * we use file extensions to determine if we are using the C++
#    compiler or the cuda compiler
#  * we use ^// at the start of the regex to only permit matching
#    PyTorch files. This excludes external repos.
#
# Note that because this is logically a command-line flag, it is
# considered the word on what warnings are enabled. This has the
# unfortunate consequence of preventing us from disabling an error at
# the target level because those flags will come before these flags in
# the action invocation. Instead we provide per-file exceptions after
# this.
#
# On the bright side, this means we don't have to more broadly apply
# the exceptions to an entire target.
build \
    --per_file_copt='^//.*\.(cpp|cc)$'@-Werror=type-limits                \
    --per_file_copt=^//.*\.cu$@--compiler-options=-Werror=type-limits     \
    --per_file_copt='^//.*\.(cpp|cc)$'@-Werror=unused-function            \
    --per_file_copt=^//.*\.cu$@--compiler-options=-Werror=unused-function

build \
    --per_file_copt=//:aten/src/ATen/RegisterCompositeExplicitAutograd.cpp@-Wno-error=unused-function \
    --per_file_copt=//:aten/src/ATen/RegisterCompositeImplicitAutograd.cpp@-Wno-error=unused-function \
    --per_file_copt=//:aten/src/ATen/RegisterMkldnnCPU.cpp$@-Wno-error=unused-function                \
    --per_file_copt=//:aten/src/ATen/RegisterNestedTensorCPU.cpp$@-Wno-error=unused-function          \
    --per_file_copt=//:aten/src/ATen/RegisterQuantizedCPU.cpp$@-Wno-error=unused-function             \
    --per_file_copt=//:aten/src/ATen/RegisterSparseCPU.cpp$@-Wno-error=unused-function                \
    --per_file_copt=//:aten/src/ATen/RegisterSparseCsrCPU.cpp$@-Wno-error=unused-function             \
    --per_file_copt=//:aten/src/ATen/RegisterZeroTensor.cpp$@-Wno-error=unused-function               \
    --per_file_copt=//:torch/csrc/lazy/generated/RegisterAutogradLazy.cpp@-Wno-error=unused-function  \
    --per_file_copt=//:torch/csrc/lazy/generated/RegisterLazy.cpp@-Wno-error=unused-function